Before undertaking a systematic review, it is necessary to check whether there are already existing or ongoing reviews, and whether a new review is justified.
A good start is to:
Additionally, search (one of) the following resources to establish the answer to this question:
All that is necessary to start a systematic review is a question. However, finalizing it requires great time and effort. To increase the change of a systematic review leading to a publication it is important to gather a team of collaborators with different expertise.
A good team consists of: